![]() ![]() The only problem with this advice is that it’s helpful only before your backup drive fills up. Then drag the desired file or folder into the “Exclude these items from backups” list and click Save. To do this, open System Preferences > Time Machine and click the Options button. Once in Time Machine, click the Action menu (the gear icon) in the toolbar and choose Delete All Backups of Item.Īlas, this approach may not have much of an effect, since it’s difficult to know how many backups Time Machine has stored.Īnother approach that Apple mentions is excluding items from the Time Machine backup. Navigate to one of those items in the Finder, select it, and then choose Enter Time Machine from the Time Machine menu bar icon. Instead, use a utility like GrandPerspective or OmniDiskSweeper to identify folders or files that are both large and unnecessary. You have no idea what you’ll be deleting, and you’ll likely corrupt the entire Time Machine backup, rendering it useless. You might be tempted to look in the Backups.backupdb folder on your Time Machine drive and delete some of the dated folders inside. One possible solution-albeit likely a short term one-is to delete old backups. You have four options at this point, but two of them may not be all that helpful. ![]() When that happens, backups will start failing, and this notification will appear after every backup attempt.Ĭlick the Details button in that notification to open the Time Machine pane of System Preferences, and you’ll learn more. In general, this approach works well, since you probably don’t need all the older versions of changed files as long as Time Machine always retains the most recent version in the backup.Įventually, however, even this technique runs into the wall of hard drives having only so much capacity. It warns you when this starts happening and tells you what your oldest remaining backup is. So the first thing that Time Machine does when your backup drive fills up is start deleting those older versions, beginning with the oldest ones. If you modify the same file multiple times per day, every day, you’ll have numerous versions of it in your backup set so that you can go back to any particular version. After that, Time Machine keeps hourly backups for the past 24 hours, daily backups for the past month, and weekly backups for all previous months. On its first backup, Time Machine copies everything on your startup drive to the backup drive. What happens then?īefore we explain, some background. Time Machine is smart about backing up only files that have changed, but after months or years of usage, the drive will run out of space. I also use Docker, but I don't see any images.It’s inevitable-your Time Machine backup drive is going to fill up. $ sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper I used the command line with sudo to start OmniDiskSweeper Map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /System/Volumes/Data/home ![]() Running command df doesn't show much other than 72Gi used by /dev/disk1s1įilesystem Size Used Avail Capacity iused ifree %iused Mounted on However, when I use that, it doesn't show anything out of the ordinary or space that is used. I've Googled, and came across a recommendation for OmniDiskSweeper. In the "About This Mac" storage option, it shows that "other" takes 64 GB. I have deleted files and moved the upgrade image to an external drive, but I still don't have enough space. I am trying to upgrade my Mac Mini to Big Sur, but it tells me that I don't have enough storage. ![]()
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